The Ranco O16-209 is a heavy-duty SPDT pressure control engineered for high-pressure cut-out applications in commercial refrigeration and air conditioning systems

The ZoneFirst RDS-6 Damper is a professional-grade 6-inch round damper engineered for reliable airflow management in residential and light commercial HVAC zoning systems

ensuring a perfect fit for legacy systems

Reduced Operational Noise: Advanced motor logic ensures soft-start and ramp-down profiles to minimize duct vibrations

The unit features a standard 48-frame motor diameter and CCW rotation (counter-clockwise) from the lead end

Honeywell MN7505A2001 Actuator 320788-704 The Ranco O16-209 is aThe Honeywell MN7505A2001 is a non spring return direct coupled actuator engineered for precise control in HVAC zoning and VAV systems. This 24VAC DC unit delivers 44 lb in torque, utilizing a brushless DC motor with a magnetic clutch to eliminate the need for limit switches while protecting against mechanical stalls. Designed for high performance building automation systems, it supports 0 2 10Vdc modulating, 4 20mA (with 500 Ohm resistor), and